I am already familiar with this topic. Everyone else only uses gtfs:stop_id:<country>-<operator> and gtfs:stop_name:<country>-<operator>(*). You use
gtfs:stop_id:<country>-<operator>,
gtfs:shape_id:<country>-<operator>,
gtfs:route_id:<country>-<operator> (duplicate to ref).

That's why I suspected that this was a detail of the source that should be noted under the key source. You seem to have confirmed this for me.

(*) The stop may have a different name locally, especially if several operators use the stop.

Please answer my questions about the meaning of the keys.

Hello! What is the mean of the tags
proyecto_escuelas_argentina = yes
sotm_lujan2025 = yes
?

Hello! Please have a look on relation/9536618. What is the mean of the tag gtfs:shape_id:US-WA-PT=shp-1-04. Is this the source data file?

Hello! Please have a look on way/1433701340. What is the mean of the tags
kanal = Nej
objektidentitet = 616f7e20-83c4-49c8-a1c7-32569ae23a6e
objekttyp = Vattendrag
objekttypnr = 1581
skapad = 2025/07/08 01:00:01
storleksklass = 1
vattendragsid = 0c622dd1-bddc-43a3-91bc-e92710a58cc8
?

Hello! Which building:levels value is right?

Hello! Please have a look on way/1433992036. What is the mean of the tags
BIOME = T
CONS_OBJ = 0
ESTYEAR = 2024
GOV_TYPE = 2
IUCN_CAT = 3
JUR_ID = 9964
LOC = 2
MECH_E = Protected Areas of British Columbia Act
MGMT_E = Government of British Columbia
MPLAN = 0
NAME_E = KIIŠḤNIQʷUS CONSERVANCY
NAME_F = KIIŠḤNIQʷUS CONSERVANCY
NO_TAKE = 0
NO_TAKE_HA = 0
OBJECTID = 18502
OWNER_E = Government of British Columbia
OWNER_TYPE = 2
O_AREA_HA = 11012
PARENT_ID = 590009964
PA_OECM_DF = 1
PROVIDER = 59
QUALYEAR = 2024
STATUS = 1
SUBSRIGHT = B
Shape_Area = 110119572.180008
Shape_Length = 138831.714740567
TYPE_E = Conservancy
ZONEDESC_E = Terrestrial Zone
ZONE_ID = 591009964
?

Hello! Please have a look on way/1433909353. What is the mean of the tag yes = designated?

Welcome to OSM! Please notice the difference between a name and a description.
If you need more information (and cannot find any examples or ask anyone else), please visit our wiki at
man_made=surveillance

Welcome to OSM! Please be careful! You moved the node node/4160006319 more than 100 meters over streets and buildings.
I moved the node back to the original position.

Welcome to OSM! Please be careful!!! You moved five (!) nodes than 100 meters over streets and buildings.
I moved the node back to the original position.
Please check the other nodes are on the correct position

Hello! Please have a look on way/1434131431. This way have only one key name and no description about the type of this way!

You should only import data that OSM can interpret. I still believe that this data is internal Tiger information. Can I delete this data?

Welcome to OSM!
Please notice the difference between a name and a description.
If you need more information (and cannot find any examples or ask anyone else), please visit our wiki at osm.wiki.

Please have a look on trail_visibility on highway=path.

Welcome to OSM! Thanks for your addition!

You only added the name of a business to the building, but did not note that there is also a business there. No Website and description isn't engouh. If you do not know the spelling of the tag, please look it up in the wiki osm.wiki.

Welcome to OSM! Please be careful! You moved the node node/8681357744 more than 100 meters over streets and buildings.
I moved the node back to the original position.

Welcome to OSM! Please be careful! You moved the node node/2166395718 more than 100 meters over streets and buildings.
I moved the node back to the original position.

Welcome to OSM! Please be careful! You moved two nodes more than 100 meters over streets and buildings.
I reverted the whole change set because there is now comment on the change set.

I actually found a key tiger:GEOIDFQ (see https://taginfo.osm.org/keys/tiger%3AGEOIDFQ). But if you don't know the added value of a key, it's better to leave it out. And based on my findings https://stackoverflow.com/questions/78518131/postgis-3-4-0-tiger2023-state-data-new-column-geoid-geoidfq-not-in-tiger-state, I would even define it as an irrelevant technical ID from the source.

Excuse me, before you make claims, you should check your facts.